Telfair 2pcs Door Jamb Light Switch – Compatible with 1968-1984 GM Cars (Camaro, Chevelle, Firebird, Nova, Impala)

Overview

The Telfair 2-piece Door Jamb Light Switch set offers a thoughtful, measured replacement for decades-old GM interior lighting switches. Designed to mirror original form and function, this two-pack helps you refresh multiple doors or keep a spare on hand for restoration projects. Built with a practical approach to reliability, these switches are ready for the challenges of daily driving and weekend tinkering alike.

Key compatibility and technical notes

This replacement targets GM part numbers 4891633 or 14014578 and uses a standard 3/8-24 thread for a secure fit in compatible jamb locations. The design supports a sturdy ground path that helps the interior dome light operate consistently when doors are opened.

Fitment at a glance

• Fits GM trucks manufactured from 1968–1984, preserving original grounding and lighting behavior.
• Suitable for a range of early GM passenger cars that use GM part 4891633 (Group 11.950 on both sides); verify your vehicle’s original switch reference before installation.

What you get and why it matters

• Two switches included in one package for easy replacement across multiple doors or to have a ready spare.
• Reliable grounding support to help the interior dome light engage when doors are opened, contributing to safer entry and exit at night.
• 1-year unlimited-mileage quality guarantee provides confidence for ongoing use and long-tail projects.

Practical tips and care

Before installation, confirm the original switch number on your vehicle and ensure compatible thread size. The 3/8 X 24 thread is a common standard for many GM jamb switch locations, facilitating a straightforward swap when you’re ready to refresh interior lighting reliability. This replacement does not alter exterior lighting behavior, but it can restore expected interior visibility and convenience inside classic GM models.

Why consider this replacement

Car restoration and maintenance projects benefit from components that honor original design while delivering dependable operation. The Telfair 2-piece door jamb switch set aims to balance authenticity with practical, repeatable performance so you can focus on enjoying the drive and the restoration journey without undue uncertainty.